Study notes for the first day of vue

#About Vue Progressive and Bottom-Up Understanding
As a beginner who is new to Vue, first understand Vue's Progressive, I first record my understanding at the beginning of my study and then I will have a deeper understanding after the later study. First understand the literal meaning here. Gradual progress means gradual progress. Can it be equivalent to disassembling into parts and improving little by little. Progressive is the way Vue is used.
I read the blogs of some big guys and the posts on Zhihu, which mentioned one called Least Advocate. The least assertion means that the requirements for users are relatively low, and there is no more work outside of their duties. Is it equivalent to writing the code according to your needs, without having to manipulate things other than the code too much.
Bottom-up: According to the literal meaning, first write the bottom layer, and then write up layer by layer, just like building a building, lay the foundation, and then start to build the building upwards. Vue is the same from the bottom up. Render, write.